There were multiple remains in the 12-foot-deep grave where Finocchiaro was found, but police have not identified who those may belong to.
The body, discovered Wednesday on a sprawling property in suburban Philadelphia, was identified as Dean Finocchiaro, 19.
"Make no mistake about it: We don't know how many homicides", Weintraub said. "There are additional human remains inside that grave". "We notified his family that..."
Pennsylvania authorities and the Federal Bureau of Investigation are searching for four young men between the ages of 19 and 22 who vanished within days of each other last week, one on Wednesday and three on Friday.
Patrick graduated from Holy Ghost Preparatory School in 2016, where Dinardo was also a graduate in 2015, according to Bill Doherty, the school's director of communications.More news: Scary scene at Wimbledon as Bethanie Mattek-Sands crumples, screaming 'help me'
A man authorities have called a person of interest in the search for four missing Pennsylvania men has been re-arrested, this time for allegedly stealing and trying to sell a vehicle belonging to one of the missing men. The location is near a property on Aquetong Road, which is owned by the DiNardo family.
A judge dismissed the charge in May, but the Bucks County district attorney's office authorized police to reinstate and refile charges last month.
DiNardo's social media posts showed the 20 year old retaining an avid interest in hunting, fishing and Air Jordan sneakers. His vehicle was found in the garage of a Solebury Township home, near the farmland being searched, also owned by the DiNardo family.
Authorities are still searching for four Pennsylvania men who went missing last week. Both young men didn't go to work on Saturday, police said.
Cadaver dogs led investigators to the grave. Cosmo DiNardo, 20, is described as an heir to vast real estate holdings of his family.More news: Troy Williams, Thomas Bryant shine in Vegas Summer League openers
Sturgis, 22, of Pennsburg, was last seen on Friday, July 7.
"I am very, very pleased, paradoxically, with our progress", Weintraub said.
Sturgis' father said his son and Meo are longtime friends and "Finocchiaro is a mutual friend of theirs", The Associated Press reported.
No one has been charged in Finocchiaro's death or the disappearance of the other men. No charges related to the killing of Finocchiaro or the found human remains have yet been filed, Weintraub said. All are local men and believed to be friends, Weintraub said. "It is my hope that he does not post that [$5 million bail], but that's his prerogative, of course, if he could post it, but we're going to start looking seriously at the homicide charges and, in fact, we already have pursued that option", said Weintraub. DiNardo is prohibited from possessing a firearm because he has a mental illness and had previously been involuntarily committed to a mental health facility.
Weintraub stated: "We've been treating this from the outset as a criminal investigation and nothing has deterred that from this point".More news: Active search underway for triple shooting suspect in Gardendale